Changes that happened to jquery.couch.js which were not
reflected by the current failing JSpec Testsuite and
required changes to the testuite:

- jquery.couch returns the time for the request and not an
object with an url property
- jquery.couch does not show alerts any more
- success callbacks don't return a status any more
- db.copyDoc expects an docid as target in the first option object,
not a third parameter with an `Destination` property

Since Filipe's fix for parsing the accepted content types at r1041103, returns from
$.ajax could return a 302 that redirects to an HTML page. Functions like activeTasks()
expect JSON and barf when fed HTML.

map queries with group=true query option will return an error. closes COUCHDB-185. changes to jquery.couch.js to support ajaxOptions may be useful for more than just openDoc, will need to be spread to the rest of the API.

* Respond to DELETE requests with a "200 OK" status code instead of "202 Accepted", as the deletion is performed immediately. * The "content-type" member in attachment structures is now named "content_type" (underscore) for consistency and to be more accessible from Javascript (and presumably other languages, too)